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(A) Absorption spectra of probe 47 (10 μM) in the present of different ions (Cys, Glu, Gly, NaBr, NaCl, NaClO, NaCNS, NaF, BaCl2, CaCl2, CoCl2, CuCl2, FeCl3, MgCl2, NiSO4 ZnSO4, and SnCl2); (B) absorption spectra of probe 47 (10 μM) in aqueous solution upon addition of different amounts of H2S. Reprinted with permission from Ref. [77]. Copyright ©2020 Royal Society of Chemistry.
